Some routine companies often advertise that the investment does not cost a penny and the rental income is 20 years. In 20 years, the rooftop power station will be yours! What they advocate to farmers is to rent idle roofs, the roof equipment can be used to generate electricity, and the surplus electricity can be sold to power grid companies to earn a certain income. After 20 years, the roof equipment will become the farmers' own, which seems profitable.

Some unscrupulous merchants carry out so-called "free installation" and "rental roof installation" in rural areas, using yin-yang contracts, or vague clauses and vague concept clauses of contracts to trick people into signing contracts, and then obtain large secured loans from banks by scanning ID cards and electronic signatures.

Matters needing attention in installing photovoltaic on rural roofs;

Individuals applying for the grid connection of solar photovoltaic power plants do not need much qualification except the right to use the roof. However, in addition to policies, some objective factors need to be considered when installing solar photovoltaic power plants.

It is suggested that the installation location and area of photovoltaic modules should be considered first. Generally speaking, the south roof or the east-west roof is suitable for installation. In addition, families with yards or balconies can also consider installing sun sheds, carports or shading.

Each kilowatt photovoltaic power generation system can generate about four degrees per day on average, and the roof area needs 10 square meter to tile, while it needs about 7 square meters to tile diagonally according to different angles. Users can roughly estimate the size of their own photovoltaic power generation system according to the electricity consumption and available area.